He is in the full conviction that he will be promoted.

他确信他能高升.

辞典例句

I am in the full conviction ( that ) he is honest.

我完全相信他是诚实的.

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I speak in the full conviction that our cause is just.

我坚信我们的事业是正义的.

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I speak in the full conviction that he is right.

我深信他是正确的.

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